# 继承
# 单继承
class Amphibian:
    name = "猜猜我是谁，喜欢吃好吃的"
    def features(self):
        print("喜欢睡觉")
        print("喜欢爬山")
class Frog(Amphibian):
    def attr(self):
        print("是黄楠!")